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Merge pull request #2637 from mark-monteiro/do-not-instantiate-services-at-startup

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Do not instantiate IService instances unecessarily at startup
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Bond-009 2020-04-02 15:50:47 +02:00 committed by GitHub
parent 89448ac055 2a521b0f68
commit 108172c00f
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 34 additions and 11 deletions
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4
Emby.Server.Implementations/ApplicationHost.cs
View file

@ -43,6 +43,7 @@ using Emby.Server.Implementations.Playlists;
using Emby.Server.Implementations.ScheduledTasks;
using Emby.Server.Implementations.Security;
using Emby.Server.Implementations.Serialization;
using Emby.Server.Implementations.Services;
using Emby.Server.Implementations.Session;
using Emby.Server.Implementations.SocketSharp;
using Emby.Server.Implementations.TV;
@ -758,6 +759,7 @@ namespace Emby.Server.Implementations
CertificateInfo = GetCertificateInfo(true);
Certificate = GetCertificate(CertificateInfo);
serviceCollection.AddSingleton<ServiceController>();
serviceCollection.AddSingleton<IHttpListener, WebSocketSharpListener>();
serviceCollection.AddSingleton<IHttpServer, HttpListenerHost>();
@ -1063,7 +1065,7 @@ namespace Emby.Server.Implementations
.Where(i => i != null)
.ToArray();
HttpServer.Init(GetExports<IService>(false), GetExports<IWebSocketListener>(), GetUrlPrefixes());
HttpServer.Init(GetExportTypes<IService>(), GetExports<IWebSocketListener>(), GetUrlPrefixes());
LibraryManager.AddParts(
GetExports<IResolverIgnoreRule>(),

19
Emby.Server.Implementations/HttpServer/HttpListenerHost.cs
View file

@ -60,7 +60,8 @@ namespace Emby.Server.Implementations.HttpServer
IJsonSerializer jsonSerializer,
IXmlSerializer xmlSerializer,
IHttpListener socketListener,
ILocalizationManager localizationManager)
ILocalizationManager localizationManager,
ServiceController serviceController)
{
_appHost = applicationHost;
_logger = logger;
@ -71,6 +72,8 @@ namespace Emby.Server.Implementations.HttpServer
_jsonSerializer = jsonSerializer;
_xmlSerializer = xmlSerializer;
_socketListener = socketListener;
ServiceController = serviceController;
_socketListener.WebSocketConnected = OnWebSocketConnected;
_funcParseFn = t => s => JsvReader.GetParseFn(t)(s);
@ -90,7 +93,7 @@ namespace Emby.Server.Implementations.HttpServer
public string GlobalResponse { get; set; }
public ServiceController ServiceController { get; private set; }
public ServiceController ServiceController { get; }
public object CreateInstance(Type type)
{
@ -594,17 +597,15 @@ namespace Emby.Server.Implementations.HttpServer
/// <summary>
/// Adds the rest handlers.
/// </summary>
/// <param name="services">The services.</param>
/// <param name="listeners"></param>
/// <param name="urlPrefixes"></param>
public void Init(IEnumerable<IService> services, IEnumerable<IWebSocketListener> listeners, IEnumerable<string> urlPrefixes)
/// <param name="serviceTypes">The service types to register with the <see cref="ServiceController"/>.</param>
/// <param name="listeners">The web socket listeners.</param>
/// <param name="urlPrefixes">The URL prefixes. See <see cref="UrlPrefixes"/>.</param>
public void Init(IEnumerable<Type> serviceTypes, IEnumerable<IWebSocketListener> listeners, IEnumerable<string> urlPrefixes)
{
_webSocketListeners = listeners.ToArray();
UrlPrefixes = urlPrefixes.ToArray();
ServiceController = new ServiceController();
var types = services.Select(r => r.GetType());
ServiceController.Init(this, types);
ServiceController.Init(this, serviceTypes);
ResponseFilters = new Action<IRequest, HttpResponse, object>[]
{

20
Emby.Server.Implementations/Services/ServiceController.cs
View file

@ -3,14 +3,27 @@ using System.Collections.Generic;
using System.Threading.Tasks;
using Emby.Server.Implementations.HttpServer;
using MediaBrowser.Model.Services;
using Microsoft.Extensions.Logging;
namespace Emby.Server.Implementations.Services
{
public delegate object ActionInvokerFn(object intance, object request);
public delegate void VoidActionInvokerFn(object intance, object request);
public class ServiceController
{
private readonly ILogger _logger;
/// <summary>
/// Initializes a new instance of the <see cref="ServiceController"/> class.
/// </summary>
/// <param name="logger">The <see cref="ServiceController"/> logger.</param>
public ServiceController(ILogger<ServiceController> logger)
{
_logger = logger;
}
public void Init(HttpListenerHost appHost, IEnumerable<Type> serviceTypes)
{
foreach (var serviceType in serviceTypes)
@ -21,6 +34,13 @@ namespace Emby.Server.Implementations.Services
public void RegisterService(HttpListenerHost appHost, Type serviceType)
{
// Make sure the provided type implements IService
if (!typeof(IService).IsAssignableFrom(serviceType))
{
_logger.LogWarning("Tried to register a service that does not implement IService: {ServiceType}", serviceType);
return;
}
var processedReqs = new HashSet<Type>();
var actions = ServiceExecGeneral.Reset(serviceType);

2
MediaBrowser.Controller/Net/IHttpServer.cs
View file

@ -32,7 +32,7 @@ namespace MediaBrowser.Controller.Net
/// <summary>
/// Inits this instance.
/// </summary>
void Init(IEnumerable<IService> services, IEnumerable<IWebSocketListener> listener, IEnumerable<string> urlPrefixes);
void Init(IEnumerable<Type> serviceTypes, IEnumerable<IWebSocketListener> listener, IEnumerable<string> urlPrefixes);
/// <summary>
/// If set, all requests will respond with this message